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A065737
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Largest square <= Binomial[n,2].
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1
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0, 1, 1, 4, 9, 9, 16, 25, 36, 36, 49, 64, 64, 81, 100, 100, 121, 144, 169, 169, 196, 225, 225, 256, 289, 324, 324, 361, 400, 400, 441, 484, 484, 529, 576, 625, 625, 676, 729, 729, 784, 841, 900, 900, 961, 1024, 1024, 1089, 1156, 1225
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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FORMULA
| a(n)=A048760[C[n, 2]]
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PROG
| (PARI) { for (n=1, 1000, a=sqrtint(binomial(n, 2))^2; write("b065737.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 28 2009]
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CROSSREFS
| Cf. A048760, A000217, A065730-A065741
Sequence in context: A186887 A140978 A106410 * A014719 A139417 A095873
Adjacent sequences: A065734 A065735 A065736 * A065738 A065739 A065740
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KEYWORD
| easy,nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Nov 15 2001
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